21 results about "High-speed grinding" patented technology

The invention discloses a radial ultrasonic vibration grinding wheel suitable for high-speed grinding and a using method. The grinding wheel comprises a grinding wheel resonance outer ring, a non-contact electric energy transmission device, an ultrasonic transducer, a grinding wheel front cover plate, a grinding wheel rear cover plate and a grinding material layer. Ultrasonic transducers in a longitudinal vibration mode are uniformly mounted on the inner circumferential surface of the resonant outer ring, and power is supplied to the transducers in a non-contact manner, so that the resonant outer ring generates radial ultrasonic vibration in an expansion vibration mode. The abrasive material layer is made of cubic boron nitride or diamond abrasive particles and is fixed to the outer circumferential face through brazing or electroplating, and efficient cutting of a workpiece is achieved. And the grinding force can be effectively reduced and the machining efficiency and the surface quality can be improved by cooperating with rotation and feeding movement of a machine tool spindle. Test results show that the method is suitable for precise grinding of hard and brittle materials and difficult-to-machine materials under the conditions of high speed and large cutting depth.

The application provides a whole-blade-disc tip precision milling method, which uses a chamfering milling cutter as a precision cutter. In the precision milling process, the cutting edge of the chamfering milling cutter is tangent to the tip, and the direction of the precision cutter is controlled to be along the milling direction. When the precision cutter rotates, the cutting force is directed towards the blade root rather than the blade side. Therefore, the machined part of the tip has sufficient rigidity, and the precision milling of the tip can be completed based on the chamfering milling cutter. The more complex high-speed grinding method is not needed for the machining of the tip, the machining process of the tip is simplified, and the machining cost is reduced.

This utility model relates to the field of machining equipment technology, specifically to a bar stock rough grinding device, comprising a base 1, a base 2, an electric slide 1, an electric slide 2, a grinding wheel spindle, a grinding wheel, and a clamping assembly. Base 1 is located on the left side of base 2. Electric slide 1 and electric slide 2 are respectively mounted on base 1. The grinding wheel spindle is mounted on electric slide 2. The grinding wheel drive assembly is located behind the grinding wheel spindle and is connected to the grinding wheel spindle via a transmission mechanism. The output shaft of the grinding wheel spindle is connected to the grinding wheel. The clamping assembly for holding the bar stock is fixedly mounted on base 2. Through the cooperation of a synchronous follower bracket and sliding frame, etc., it provides stable support for the bar stock combining dynamic and static elements, significantly improving the stability of the bar stock during high-speed grinding. It solves the problem of workpiece displacement caused by vibration or impact in traditional equipment, ensuring machining accuracy and surface quality.

This invention relates to an intelligent control device and method for temperature rise of guideways in CNC gantry grinding machines. The device comprises several thermally symmetrical and parallel V-shaped and planar guideways A on the machine bed. Each V-shaped and planar guideway A section is equipped with an independent PLC intelligent temperature control system and structural device. This invention solves the technical problems of guideway deformation and distortion caused by sliding friction and heat expansion, as well as the related technological challenges. It enables real-time and accurate detection and intelligent control of the temperature rise of each guideway within the grinding stroke, avoiding the problem of thermal deformation and distortion caused by differences in frictional force due to the different structural forms of the V-shaped and planar guideways. This improves the linear and planar accuracy and stability of the worktable movement, and also solves the prominent technical problems of straightness, flatness deviations, and grinding marks caused by long-term continuous high-efficiency grinding. This effectively improves the accuracy and efficiency of CNC gantry grinding machines in long-term continuous high-speed grinding of large key parts guideways.

The application belongs to the field of abrasive tool abrasive processing, and particularly relates to a ceramic grinding wheel wax infiltration process. The ceramic grinding wheel wax infiltration process is realized by using a wax infiltration device; the wax infiltration device comprises a wax infiltration pot A, a wax infiltration pot B, and a wax infiltration pipeline capable of connecting the wax infiltration pot A and the wax infiltration pot B. The process is used to infiltrate a wax liquid with good fluidity into the pores of the grinding wheel by vacuumizing, and in the high-speed grinding process of the prepared grinding wheel, a large amount of grinding heat is continuously generated, and after the pores of the grinding wheel are filled with the wax, the grinding heat caused by the grinding simultaneously acts on the workpiece and the wax, a large amount of grinding heat is taken away by the melting and gasification of the wax, and the workpiece is prevented from being burnt; meanwhile, the melted wax liquid acts on the grinding area, so that an adsorption film is formed between the grinding wheel and the workpiece, and the adsorption film plays a lubricating and rust-proof role and improves the grinding quality of the workpiece. The wax infiltration process is easy to popularize and apply in the abrasive tool industry and the processing industry.

The utility model discloses a high-speed grinding wheel for glass processing, and relates to the technical field of glass processing. Comprising a grinding wheel seat and a grinding wheel mounted at the top end of the grinding wheel seat and used for grinding. The outer cambered surface of the grinding wheel seat penetrates through the inner cavity of the grinding wheel and is provided with a plurality of groups of dewatering ports at equal radian, and the inner wall of the positioning bottom plate is provided with a plurality of groups of water distributing grooves corresponding to the dewatering ports. According to the high-speed grinding wheel for glass processing, through collaborative optimization of materials, structures and functions, the glass processing efficiency and quality are remarkably improved. By adopting the design of the high-strength diamond material, the silicon carbide and the ceramic abrasive, the cutting hardness and the thermal conductivity are guaranteed during high-speed operation, the stress concentration problem is relieved, and the overall service life of the grinding wheel is prolonged. Rapid circulation and throwing-out of the cutting fluid are achieved, the grinding temperature is effectively reduced, glass edge breakage or burning is avoided, and the surface smoothness under 12 m / min high-speed machining is ensured.

The invention belongs to the technical field of grinding devices, particularly relates to a rotor profile grinding device for a double-screw air compressor, and provides the following scheme aiming at the problems that in the prior art, scrap iron and dust residues are easily caused, self-adaptive adjustment cannot be performed according to the blockage condition of a filter screen, nozzle positioning deviation is easily caused, and continuous and accurate angle positioning is difficult to achieve. Comprising a workbench, supporting legs are fixedly mounted on the left side and the right side of the bottom of the workbench, a mounting box is fixedly mounted at the top of the workbench, a machining block is fixedly mounted on the left side of the mounting box, a first hydraulic cylinder is arranged at the top of the machining block, a first driving motor is arranged on an output shaft of the first hydraulic cylinder, and a grinding wheel head is fixedly mounted on an output shaft of the first driving motor; according to the high-speed grinding device, scrap iron splashed during high-speed grinding can be rapidly sucked away, self-adaptive adjustment can be achieved according to the blocking condition of the filter screen, the nozzle can be adjusted according to the position of the adjusting block, and angle positioning can be continuously and accurately conducted.

A heat dissipation type thick grinding wheel for grinding a blade of a plate shearing machine belongs to the technical field of grinding, a through hole is formed in the center of the grinding wheel, a heat dissipation ring is arranged in the grinding wheel and filled with paraffin-based phase change materials to absorb heat, a groove is formed in the inner surface of the heat dissipation ring, inclined heat dissipation fins are arranged in the heat dissipation ring, and the surface of the heat dissipation ring is coated with a ceramic coating; a temperature sensor is arranged in the fixing block, cooling fins are arranged on one side of the cooling ring, cooling holes are formed in the surface of the heat conduction block, reinforcing ribs are distributed on the surface of the cooling ring, an adjustable counterweight groove is formed in the surface of the fixing block, and the grinding wheel and the cooling ring are in bolted connection through a through hole and a positioning hole to ensure concentricity. The heat conduction blocks and the heat dissipation fins accelerate heat discharge, material deformation is prevented, the heat dissipation fins are obliquely arranged, airflow disturbance is enhanced, the heat dissipation efficiency is improved, the heat dissipation fins and the heat conduction holes form airflow channels, further heat dissipation is achieved, the reinforcing ribs improve the deformation resistance, the balance weight grooves guarantee the high-speed rotation stability, the overall structure is compact, heat dissipation is efficient, and the high-speed grinding machine is suitable for high-speed grinding machining.

The present application relates to an asymmetric-diameter oscillating heat pipe grinding wheel, and a manufacturing method therefor and the use thereof. The grinding wheel mainly consists of a grinding wheel front end cover, an oscillating heat pipe base, and a grinding wheel rear end cover, the three parts being laser-welded into an integrated structure, wherein oscillating heat pipe flow channels are arranged in a staggered manner on each of the front and rear surfaces of the oscillating heat pipe base; and the oscillating heat pipe flow channels include a plurality of single-loop asymmetric-diameter structures that are connected end to end. The structure can enable, by means of variable-diameter structures, different pressure gradients to be formed inside the flow channels, thereby providing an additional pressure difference for the flow of an internal working medium, and promoting the internal working medium of oscillating heat pipes to form a stable unidirectional cyclic motion. The asymmetric-diameter oscillating heat pipe grinding wheel can still maintain an efficient heat transfer performance and operating stability under high-speed grinding conditions.

The application discloses a high-speed grinding method for directionally cast high-temperature alloy turbine working blades, which comprises the following processes: grinding directionally cast high-temperature alloy turbine working blades by using a grinding wheel; the grinding line speed Vs is not less than 43 m / s and the feeding speed Vw is not less than 1000 mm / min in each grinding process; the cutting depth of the first cutter is 0.5 mm, and the cutting depth of subsequent grinding processes is sequentially decreased; and the grinding wheel is a single-crystal corundum grinding wheel. The method solves the problem of low processing efficiency of the grinding method for directionally cast high-temperature alloy turbine working blades in the prior art, and seriously affects the production speed. By adopting the single-crystal corundum grinding wheel, the grinding line speed Vs is not less than 43 m / s, the feeding speed Vw is not less than 1000 mm / min, and the cutting depth of the grinding process is limited, the grinding efficiency is improved by 3.6 times, and the surface integrity requirement is met.

The application discloses a grinding wheel for preventing end face cracks of a workpiece in a high-speed grinding process and a preparation method thereof, and belongs to the field of grinding wheel manufacturing and grinding processing. The two end faces of the grinding wheel are provided with randomly distributed micro holes (200-500 microns) through laser marking, a high number of binders (23-28%) is used in the formula of the grinding wheel, and a method for forming micron-sized small holes (5-10 microns) in the binders is used to increase the convective heat transfer of the cooling medium, so that the cooling medium carries away more heat, thereby preventing end face grinding cracks. In the method, the high binder mass ratio increases the wrapping holding force of the binder on the CBN abrasive, reduces the falling of the abrasive and improves the durability of the grinding wheel. The micro holes adsorb moisture through capillary action during grinding, the millimeter holes can form a cooling water flow channel, the combination of laser marking and micron-sized small holes in the binder has good cooling effect, does not weaken the grinding performance of the grinding wheel itself, thereby reducing the dressing frequency of the grinding wheel and prolonging the service life of the grinding wheel.

This invention provides a composite vibration-damping electric spindle for high aspect ratio internal grinding, relating to the field of precision machining equipment technology. It includes a spindle housing, a drive shaft, and a passive composite vibration damping system. The passive composite vibration damping system includes multiple sets of non-contact eddy current damping components, multiple sets of built-in particle damping components, and a cooling component. The built-in particle damping components include damping particle baffles, with a sealed damping cavity arranged axially along the drive shaft between the outer wall of the damping particle baffles and the inner wall of the spindle housing. The damping cavity is filled with several damping particles. The non-contact eddy current damping components include permanent magnets fixedly disposed on the inner walls of both ends of the damping particle baffles and conductive rings sleeved on the outer wall of the drive shaft and radially opposite to the permanent magnets. A radial air gap is left between the permanent magnets and the conductive rings. This invention, through the integration of non-contact electromagnetic damping and built-in particle damping, effectively suppresses regenerative chatter of the spindle during high-speed grinding, improving machining accuracy.

This invention discloses an ultrasonic vibration electrolytic grinding composite spindle component in the field of grinding composite spindle technology, comprising an insulating shell; a hollow spindle rotor; an ultrasonic vibration mechanism connected to the hollow spindle rotor and used to generate and transmit axial ultrasonic vibration; a rotary drive device for driving the hollow spindle rotor and the ultrasonic vibration mechanism to rotate together; and an electrolysis mechanism including a conductive slip ring and an electrolyte delivery assembly, the electrolyte delivery assembly being used to deliver electrolyte to the grinding area at the front end of the hollow spindle rotor; wherein, the first electrical channel of the conductive slip ring is electrically connected to the ultrasonic vibration mechanism for transmitting high-frequency electrical signals; the second electrical channel of the conductive slip ring is electrically connected to the tool mounting end of the hollow spindle rotor for transmitting direct current for electrolytic machining. This composite spindle component, by integrating ultrasonic vibration, electrolytic machining, and high-speed grinding processes, overcomes the fundamental technical bottlenecks of low material removal rate, severe thermal damage, and rapid tool wear in traditional single ultrasonic grinding.

This invention relates to an automatic temperature control device and method for the guideways of a precision and high-efficiency CNC cylindrical grinding machine. It includes a bed, a worktable, and multiple intelligent temperature control modules for the guideways. The bed and V-shaped guideway body adopt a separate structure. The V-shaped guideway body is composed of several segments, and the guide positioning groove precisely matches the positioning block inside the V-shaped guideway body. The V-shaped guideway body has an independent PLC intelligent temperature control structure, which accurately monitors the temperature rise of the working surface in conjunction with the V-shaped guideway in real time. This solves the key technical problem of deformation, elongation, and twisting along the length direction caused by the sliding friction and thermal expansion of the V-shaped guideway body, meeting process requirements and achieving real-time, accurate, automatic acquisition and intelligent control of the V-shaped guideway temperature rise during high-speed grinding. Furthermore, it overcomes the technical challenges of controlling straightness, radial runout, and grinding marks in the long-term continuous precision grinding and high-efficiency machining of shaft parts using precision and high-efficiency CNC cylindrical grinding machines, meeting the stringent requirements of high-precision grinding and high-efficiency machining of high-quality shaft parts.

The present application relates to the technical field of grinding wheel state detection, and particularly relates to a high-speed grinding wheel state recognition detection method based on an INOA-SVM model, comprising the following steps: S1, obtaining and wear dividing of original vibration signals; S2, data processing of the original vibration signals; S3, constructing and verifying the INOA-SVM model; S4, recognition detection of the high-speed grinding wheel wear state. The present application can decompose complex original vibration data into simple signals for iteration and eliminate non-grinding vibration by processing high-speed grinding wheel vibration data, and can also accelerate the recognition detection efficiency of the grinding state recognition detection model, optimize the SVM model through the INOA model, so that the grinding state recognition detection model jumps out of local convergence, and has a faster convergence speed and higher stability, so as to improve the accuracy and stability of high-speed grinding wheel state recognition detection.

The invention discloses a grinding method based on a magnetic induction and fishbone structure coupling effect, belongs to the technical field of grinding machining, and aims to solve the problems that in the prior art, when high-speed grinding is carried out, grinding fluid is difficult to permeate into a grinding area, so that discharging of grinding dust and grinding heat is blocked, and finally a grinding wheel is blocked and adhered. The method comprises the steps that a workpiece is ground through a grinding wheel with a plurality of fishbone structures constructed on the surface and grinding fluid containing magnetic nanoparticles; regulating and controlling the magnetic field intensity through an electromagnetic module, and guiding the magnetic nanoparticles to be embedded into the fishbone structure and enriched in the grinding area by means of magnetic induction force; according to the method, magnetic nano particles are guided to be embedded into a fishbone structure channel by means of magnetic induction force and efficiently enriched in a grinding area to form a dynamic lubricating-bearing composite film, the lubricating and cooling effect of the grinding area can be effectively enhanced, the situation that interface grinding force and peak temperature are too high in the grinding process is restrained, the degree that a workpiece is scratched by abrasive dust can be reduced, and the service life of the workpiece is prolonged. Therefore, the workpiece surface integrity and the machining precision are improved.

The present application relates to the field of machining modeling, in particular to a camshaft non-circular contour high-speed grinding surface morphology dynamic modeling method, which comprises: collecting a mixed signal to obtain a source signal component corresponding to the grinding wheel wear; selecting a signal feature with high correlation with the grinding wheel wear to combine the grinding wheel abrasive wear area to construct an abrasive wear online prediction model based on FAW-DELM; measuring the grinding wheel surface morphology, setting the abrasive blade height to obey the normal distribution, calculating the grinding wheel abrasive blade height through the real-time grinding wheel abrasive wear area, dynamically adjusting the mean value of the normal distribution, combining the calculation results of the measured abrasive space distribution to establish a grinding wheel surface morphology dynamic simulation model; establishing a single abrasive particle grinding motion trajectory equation considering vibration; combining the grinding wheel surface morphology dynamic simulation model and the single abrasive particle grinding motion trajectory equation considering vibration to generate the grinding surface morphology. It can be dynamically analyzed and has high accuracy.

The application relates to the field of high-end machine tool grinding equipment, in particular to a high-speed grinding wheel electric spindle, which comprises a shell and a spindle, a cooling channel is arranged in the shell along the length direction of the shell, the shell is provided with a liquid inlet and a liquid outlet on the upper side and the lower side, the liquid inlet and the liquid outlet are communicated through the cooling channel and a material inlet arranged in the shell, a filter screen is arranged at the liquid inlet along the horizontal direction, the filter screen is used for filtering the cooling liquid, a sewage discharge channel is arranged in the shell along the length direction of the shell, a sewage discharge port is arranged at the end of the shell far from the liquid inlet, the left end and the right end of the sewage discharge channel are communicated with the liquid inlet and the sewage discharge port respectively, a plugging assembly is arranged between the cooling channel and the sewage discharge channel, and the plugging assembly is used for controlling the opening and closing of the cooling channel and the sewage discharge channel. The application aims to effectively prevent the electric spindle from being damaged due to high temperature during the daily operation of the high-speed grinding wheel electric spindle.

This invention relates to the field of ultra-precision optical grinding machines, providing an ultra-precision small-diameter optical grinding machine with integrated polishing function and its processing technology. The small-diameter optical grinding machine achieves micron-level feed and single-point grinding through multi-axis coordinated motion. Simultaneously, the positional distribution of the machine tool's grinding wheel axis, high-speed grinding spindle, and B-axis hydrostatic rotary table makes it easier for the torque of the B-axis hydrostatic rotary table to meet the cutting torque generated by the grinding force, improving the surface accuracy and stability of optical parts. This solves the problems of fragility and inefficient polishing processes for strongly interfering geometric components and thin-walled fragile parts during rough grinding. The workpiece hydrostatic spindle holds the bar stock through a fixture with an internal cavity. After processing, the workpiece can be cut off, and the remaining length of the bar stock can be extracted from the fixture to process the next workpiece. This solves the current problem of ultra-precision machine tools being unable to achieve small-batch processing with optical component bar stock in a single clamping, improving processing accuracy and efficiency.

This invention discloses an intelligent medicine dispenser and its adaptive resistance feedback and safe interactive control method, belonging to the field of medical auxiliary equipment technology. The dispenser features a split, closed structure, innovatively employing a sandwich clamping structure of "flat V-shaped silicone groove + Teflon compression block," combined with high-speed grinding using toothless diamond slices, completely solving the problems of easy breakage when cutting hard-coated tablets and easy flipping of small tablets. Simultaneously, the bottom of the device is equipped with a dust-collecting slit and a turbine negative pressure air curtain to instantly vent cutting dust and prevent cross-contamination. More importantly, this invention pioneers a closed-loop cutting algorithm based on dual-axis current feedback (hardness retraction and dynamic torque adjustment), achieving adaptive adjustment of cutting force; and breaks with traditional logic, proposing a safe human-machine interactive control method of "stopping and locking after cutting, and retracting the blade only after opening the cap." This invention greatly improves the accuracy of medicine dispensing, hygiene, and ultimate safety for home use.